HLTS Intermediate Mass Magnet Placement Fixture:D0901461-v2: Redesigned to use parts common to the HSTS magnet fixtures.D0902060-v2: Added notes (machine all surfaces, follow LIGO specification).D0902062-v2: Added notes (machine all surfaces, follow LIGO specification). Changed finish to 63 microinches.D0902444-v2: Redesigned to use parts common to the HSTS magnet fixtures.D0902445-v2: Redesigned to use parts common to the HSTS magnet fixtures. Added notes (machine all surfaces, follow LIGO specification).D0902452-v2: Redesigned to use parts common to the HSTS magnet fixtures. Added notes (machine all surfaces, follow LIGO specification).

HLTS Bottom Mass Magnet Placement Fixture:D0901460-v2: Redesigned to use parts common to the equivalent HSTS magnet fixture.D1100356-v2: Modified to accomodate HSTS and HLTS sizes of optics using two sets of Optic Rest Blocks.D0902064-v2: Modified to accomodate HSTS and HLTS sizes of optics using two sets of Optic Rest Blocks.D1100360-v1: Initial release of Optic Base Riser.D0902066-v2: Modified to be secured to base using two screws.D0902087-v2: Redesigned to use parts common to the equivalent HSTS magnet fixture.D0902068-v2: Redesigned to use parts common to the equivalent HSTS magnet fixture.